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Finding the Fourth Proportional to 112,248.70, 154,906.42 and 61,264.68

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Solution

The fourth proportional to 112,248.70, 154,906.42 and 61,264.68 is: 84,547.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,248.70 : 154,906.42 = 61,264.68 : x
  2. Step 2: Convert to fraction form
    112,248.70/154,906.42 = 61,264.68/x
  3. Step 3: Cross multiply
    112,248.70x = 154,906.42 × 61,264.68
  4. Step 4: Simplify right side
    112,248.70x = 9,490,292,251.25
  5. Step 5: Solve for x
    x = 9,490,292,251.25/112,248.70
  6. Step 6: Final answer
    x = 84,547.01

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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.