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Finding the Fourth Proportional to 90,501.93, 124,905.65 and 52,253.91

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Solution

The fourth proportional to 90,501.93, 124,905.65 and 52,253.91 is: 72,117.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,501.93 : 124,905.65 = 52,253.91 : x
  2. Step 2: Convert to fraction form
    90,501.93/124,905.65 = 52,253.91/x
  3. Step 3: Cross multiply
    90,501.93x = 124,905.65 × 52,253.91
  4. Step 4: Simplify right side
    90,501.93x = 6,526,808,332.32
  5. Step 5: Solve for x
    x = 6,526,808,332.32/90,501.93
  6. Step 6: Final answer
    x = 72,117.89

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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.