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Finding the Fourth Proportional to 92,908.90, 128,253.54 and 62,735.08

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Solution

The fourth proportional to 92,908.90, 128,253.54 and 62,735.08 is: 86,600.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,908.90 : 128,253.54 = 62,735.08 : x
  2. Step 2: Convert to fraction form
    92,908.90/128,253.54 = 62,735.08/x
  3. Step 3: Cross multiply
    92,908.90x = 128,253.54 × 62,735.08
  4. Step 4: Simplify right side
    92,908.90x = 8,045,996,092.18
  5. Step 5: Solve for x
    x = 8,045,996,092.18/92,908.90
  6. Step 6: Final answer
    x = 86,600.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.