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Finding the Fourth Proportional to 91,354.53, 126,068.88 and 51,068.25

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Solution

The fourth proportional to 91,354.53, 126,068.88 and 51,068.25 is: 70,473.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,354.53 : 126,068.88 = 51,068.25 : x
  2. Step 2: Convert to fraction form
    91,354.53/126,068.88 = 51,068.25/x
  3. Step 3: Cross multiply
    91,354.53x = 126,068.88 × 51,068.25
  4. Step 4: Simplify right side
    91,354.53x = 6,438,117,081.06
  5. Step 5: Solve for x
    x = 6,438,117,081.06/91,354.53
  6. Step 6: Final answer
    x = 70,473.98

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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.