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Finding the Fourth Proportional to 92,326.32, 127,401.12 and 56,526.48

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Solution

The fourth proportional to 92,326.32, 127,401.12 and 56,526.48 is: 78,000.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,326.32 : 127,401.12 = 56,526.48 : x
  2. Step 2: Convert to fraction form
    92,326.32/127,401.12 = 56,526.48/x
  3. Step 3: Cross multiply
    92,326.32x = 127,401.12 × 56,526.48
  4. Step 4: Simplify right side
    92,326.32x = 7,201,536,861.66
  5. Step 5: Solve for x
    x = 7,201,536,861.66/92,326.32
  6. Step 6: Final answer
    x = 78,000.91

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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.