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Finding the Fourth Proportional to 59,862,437.80, 89,569,448.70 and 42,630,476.20

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Solution

The fourth proportional to 59,862,437.80, 89,569,448.70 and 42,630,476.20 is: 63,786,046.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,862,437.80 : 89,569,448.70 = 42,630,476.20 : x
  2. Step 2: Convert to fraction form
    59,862,437.80/89,569,448.70 = 42,630,476.20/x
  3. Step 3: Cross multiply
    59,862,437.80x = 89,569,448.70 × 42,630,476.20
  4. Step 4: Simplify right side
    59,862,437.80x = 3,818,388,251,052,471.50
  5. Step 5: Solve for x
    x = 3,818,388,251,052,471.50/59,862,437.80
  6. Step 6: Final answer
    x = 63,786,046.67

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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.