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Finding the Fourth Proportional to 92,442.80, 127,570.80 and 52,156.40

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Solution

The fourth proportional to 92,442.80, 127,570.80 and 52,156.40 is: 71,975.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,442.80 : 127,570.80 = 52,156.40 : x
  2. Step 2: Convert to fraction form
    92,442.80/127,570.80 = 52,156.40/x
  3. Step 3: Cross multiply
    92,442.80x = 127,570.80 × 52,156.40
  4. Step 4: Simplify right side
    92,442.80x = 6,653,633,673.12
  5. Step 5: Solve for x
    x = 6,653,633,673.12/92,442.80
  6. Step 6: Final answer
    x = 71,975.68

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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.