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Finding the Fourth Proportional to 128,602.47, 193,027.95 and 62,089.32

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Solution

The fourth proportional to 128,602.47, 193,027.95 and 62,089.32 is: 93,193.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,602.47 : 193,027.95 = 62,089.32 : x
  2. Step 2: Convert to fraction form
    128,602.47/193,027.95 = 62,089.32/x
  3. Step 3: Cross multiply
    128,602.47x = 193,027.95 × 62,089.32
  4. Step 4: Simplify right side
    128,602.47x = 11,984,974,156.49
  5. Step 5: Solve for x
    x = 11,984,974,156.49/128,602.47
  6. Step 6: Final answer
    x = 93,193.97

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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.