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Finding the Fourth Proportional to 58,709,500.80, 88,064,251.20 and 54,457,972.80

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Solution

The fourth proportional to 58,709,500.80, 88,064,251.20 and 54,457,972.80 is: 81,686,959.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,709,500.80 : 88,064,251.20 = 54,457,972.80 : x
  2. Step 2: Convert to fraction form
    58,709,500.80/88,064,251.20 = 54,457,972.80/x
  3. Step 3: Cross multiply
    58,709,500.80x = 88,064,251.20 × 54,457,972.80
  4. Step 4: Simplify right side
    58,709,500.80x = 4,795,800,596,501,967
  5. Step 5: Solve for x
    x = 4,795,800,596,501,967/58,709,500.80
  6. Step 6: Final answer
    x = 81,686,959.20

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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.