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Finding the Fourth Proportional to 92,641.40, 127,866.12 and 52,378.48

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Solution

The fourth proportional to 92,641.40, 127,866.12 and 52,378.48 is: 72,294.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,641.40 : 127,866.12 = 52,378.48 : x
  2. Step 2: Convert to fraction form
    92,641.40/127,866.12 = 52,378.48/x
  3. Step 3: Cross multiply
    92,641.40x = 127,866.12 × 52,378.48
  4. Step 4: Simplify right side
    92,641.40x = 6,697,433,009.10
  5. Step 5: Solve for x
    x = 6,697,433,009.10/92,641.40
  6. Step 6: Final answer
    x = 72,294.17

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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.