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Finding the Fourth Proportional to 90,549.88, 124,964.90 and 52,316.86

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Solution

The fourth proportional to 90,549.88, 124,964.90 and 52,316.86 is: 72,200.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,549.88 : 124,964.90 = 52,316.86 : x
  2. Step 2: Convert to fraction form
    90,549.88/124,964.90 = 52,316.86/x
  3. Step 3: Cross multiply
    90,549.88x = 124,964.90 × 52,316.86
  4. Step 4: Simplify right side
    90,549.88x = 6,537,771,178.21
  5. Step 5: Solve for x
    x = 6,537,771,178.21/90,549.88
  6. Step 6: Final answer
    x = 72,200.77

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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.