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Finding the Fourth Proportional to 362,498,689.40, 543,748,034.10 and 103,729,350.20

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Solution

The fourth proportional to 362,498,689.40, 543,748,034.10 and 103,729,350.20 is: 155,594,025.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,498,689.40 : 543,748,034.10 = 103,729,350.20 : x
  2. Step 2: Convert to fraction form
    362,498,689.40/543,748,034.10 = 103,729,350.20/x
  3. Step 3: Cross multiply
    362,498,689.40x = 543,748,034.10 × 103,729,350.20
  4. Step 4: Simplify right side
    362,498,689.40x = 56,402,630,249,720,448
  5. Step 5: Solve for x
    x = 56,402,630,249,720,448/362,498,689.40
  6. Step 6: Final answer
    x = 155,594,025.30

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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.