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Finding the Fourth Proportional to 209,952,345.80, 314,928,518.70 and 166,114,368.20

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Solution

The fourth proportional to 209,952,345.80, 314,928,518.70 and 166,114,368.20 is: 249,171,552.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,952,345.80 : 314,928,518.70 = 166,114,368.20 : x
  2. Step 2: Convert to fraction form
    209,952,345.80/314,928,518.70 = 166,114,368.20/x
  3. Step 3: Cross multiply
    209,952,345.80x = 314,928,518.70 × 166,114,368.20
  4. Step 4: Simplify right side
    209,952,345.80x = 52,314,151,912,012,376
  5. Step 5: Solve for x
    x = 52,314,151,912,012,376/209,952,345.80
  6. Step 6: Final answer
    x = 249,171,552.30

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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.