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Finding the Fourth Proportional to 101,526.92, 140,063.15 and 61,218.29

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Solution

The fourth proportional to 101,526.92, 140,063.15 and 61,218.29 is: 84,454.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,526.92 : 140,063.15 = 61,218.29 : x
  2. Step 2: Convert to fraction form
    101,526.92/140,063.15 = 61,218.29/x
  3. Step 3: Cross multiply
    101,526.92x = 140,063.15 × 61,218.29
  4. Step 4: Simplify right side
    101,526.92x = 8,574,425,881.22
  5. Step 5: Solve for x
    x = 8,574,425,881.22/101,526.92
  6. Step 6: Final answer
    x = 84,454.70

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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.