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Finding the Fourth Proportional to 368,759.70, 553,139.55 and 132,110.10

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Solution

The fourth proportional to 368,759.70, 553,139.55 and 132,110.10 is: 198,165.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,759.70 : 553,139.55 = 132,110.10 : x
  2. Step 2: Convert to fraction form
    368,759.70/553,139.55 = 132,110.10/x
  3. Step 3: Cross multiply
    368,759.70x = 553,139.55 × 132,110.10
  4. Step 4: Simplify right side
    368,759.70x = 73,075,321,264.46
  5. Step 5: Solve for x
    x = 73,075,321,264.46/368,759.70
  6. Step 6: Final answer
    x = 198,165.15

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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.