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Finding the Fourth Proportional to 112,955.04, 155,878.11 and 62,654.04

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Solution

The fourth proportional to 112,955.04, 155,878.11 and 62,654.04 is: 86,462.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,955.04 : 155,878.11 = 62,654.04 : x
  2. Step 2: Convert to fraction form
    112,955.04/155,878.11 = 62,654.04/x
  3. Step 3: Cross multiply
    112,955.04x = 155,878.11 × 62,654.04
  4. Step 4: Simplify right side
    112,955.04x = 9,766,393,339.06
  5. Step 5: Solve for x
    x = 9,766,393,339.06/112,955.04
  6. Step 6: Final answer
    x = 86,462.66

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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.