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Finding the Fourth Proportional to 94,842, 130,883.76 and 61,366.32

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Solution

The fourth proportional to 94,842, 130,883.76 and 61,366.32 is: 84,686.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,842 : 130,883.76 = 61,366.32 : x
  2. Step 2: Convert to fraction form
    94,842/130,883.76 = 61,366.32/x
  3. Step 3: Cross multiply
    94,842x = 130,883.76 × 61,366.32
  4. Step 4: Simplify right side
    94,842x = 8,031,854,698.96
  5. Step 5: Solve for x
    x = 8,031,854,698.96/94,842
  6. Step 6: Final answer
    x = 84,686.69

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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.