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Finding the Fourth Proportional to 59,890,070.40, 89,709,134.40 and 49,812,374.40

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Solution

The fourth proportional to 59,890,070.40, 89,709,134.40 and 49,812,374.40 is: 74,613,787.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,890,070.40 : 89,709,134.40 = 49,812,374.40 : x
  2. Step 2: Convert to fraction form
    59,890,070.40/89,709,134.40 = 49,812,374.40/x
  3. Step 3: Cross multiply
    59,890,070.40x = 89,709,134.40 × 49,812,374.40
  4. Step 4: Simplify right side
    59,890,070.40x = 4,468,624,989,832,719.50
  5. Step 5: Solve for x
    x = 4,468,624,989,832,719.50/59,890,070.40
  6. Step 6: Final answer
    x = 74,613,787.56

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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.