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Finding the Fourth Proportional to 59,890,064.40, 89,709,125.40 and 49,812,368.40

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Solution

The fourth proportional to 59,890,064.40, 89,709,125.40 and 49,812,368.40 is: 74,613,778.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,890,064.40 : 89,709,125.40 = 49,812,368.40 : x
  2. Step 2: Convert to fraction form
    59,890,064.40/89,709,125.40 = 49,812,368.40/x
  3. Step 3: Cross multiply
    59,890,064.40x = 89,709,125.40 × 49,812,368.40
  4. Step 4: Simplify right side
    59,890,064.40x = 4,468,624,003,266,597.50
  5. Step 5: Solve for x
    x = 4,468,624,003,266,597.50/59,890,064.40
  6. Step 6: Final answer
    x = 74,613,778.56

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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.