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Finding the Fourth Proportional to 112,293.68, 154,965.56 and 61,306.48

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Solution

The fourth proportional to 112,293.68, 154,965.56 and 61,306.48 is: 84,603.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,293.68 : 154,965.56 = 61,306.48 : x
  2. Step 2: Convert to fraction form
    112,293.68/154,965.56 = 61,306.48/x
  3. Step 3: Cross multiply
    112,293.68x = 154,965.56 × 61,306.48
  4. Step 4: Simplify right side
    112,293.68x = 9,500,393,004.83
  5. Step 5: Solve for x
    x = 9,500,393,004.83/112,293.68
  6. Step 6: Final answer
    x = 84,603.10

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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.