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Finding the Fourth Proportional to 90,497.96, 124,905.36 and 52,263.73

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Solution

The fourth proportional to 90,497.96, 124,905.36 and 52,263.73 is: 72,134.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,497.96 : 124,905.36 = 52,263.73 : x
  2. Step 2: Convert to fraction form
    90,497.96/124,905.36 = 52,263.73/x
  3. Step 3: Cross multiply
    90,497.96x = 124,905.36 × 52,263.73
  4. Step 4: Simplify right side
    90,497.96x = 6,528,020,068.73
  5. Step 5: Solve for x
    x = 6,528,020,068.73/90,497.96
  6. Step 6: Final answer
    x = 72,134.45

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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.