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Finding the Fourth Proportional to 112,339.54, 155,028.54 and 62,038.54

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Solution

The fourth proportional to 112,339.54, 155,028.54 and 62,038.54 is: 85,613.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,339.54 : 155,028.54 = 62,038.54 : x
  2. Step 2: Convert to fraction form
    112,339.54/155,028.54 = 62,038.54/x
  3. Step 3: Cross multiply
    112,339.54x = 155,028.54 × 62,038.54
  4. Step 4: Simplify right side
    112,339.54x = 9,617,744,279.93
  5. Step 5: Solve for x
    x = 9,617,744,279.93/112,339.54
  6. Step 6: Final answer
    x = 85,613.17

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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.