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Finding the Fourth Proportional to 85,352.82, 127,925.55 and 60,400.17

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Solution

The fourth proportional to 85,352.82, 127,925.55 and 60,400.17 is: 90,526.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,352.82 : 127,925.55 = 60,400.17 : x
  2. Step 2: Convert to fraction form
    85,352.82/127,925.55 = 60,400.17/x
  3. Step 3: Cross multiply
    85,352.82x = 127,925.55 × 60,400.17
  4. Step 4: Simplify right side
    85,352.82x = 7,726,724,967.34
  5. Step 5: Solve for x
    x = 7,726,724,967.34/85,352.82
  6. Step 6: Final answer
    x = 90,526.89

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1.5x scale

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.