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Finding the Fourth Proportional to 265,736,605.80, 398,604,908.70 and 237,015,172.20

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Solution

The fourth proportional to 265,736,605.80, 398,604,908.70 and 237,015,172.20 is: 355,522,758.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,736,605.80 : 398,604,908.70 = 237,015,172.20 : x
  2. Step 2: Convert to fraction form
    265,736,605.80/398,604,908.70 = 237,015,172.20/x
  3. Step 3: Cross multiply
    265,736,605.80x = 398,604,908.70 × 237,015,172.20
  4. Step 4: Simplify right side
    265,736,605.80x = 94,475,411,075,295,776
  5. Step 5: Solve for x
    x = 94,475,411,075,295,776/265,736,605.80
  6. Step 6: Final answer
    x = 355,522,758.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.