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Finding the Fourth Proportional to 92,206.76, 127,254.85 and 56,420.55

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Solution

The fourth proportional to 92,206.76, 127,254.85 and 56,420.55 is: 77,866.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,206.76 : 127,254.85 = 56,420.55 : x
  2. Step 2: Convert to fraction form
    92,206.76/127,254.85 = 56,420.55/x
  3. Step 3: Cross multiply
    92,206.76x = 127,254.85 × 56,420.55
  4. Step 4: Simplify right side
    92,206.76x = 7,179,788,486.12
  5. Step 5: Solve for x
    x = 7,179,788,486.12/92,206.76
  6. Step 6: Final answer
    x = 77,866.19

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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.