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Finding the Fourth Proportional to 86,044.95, 118,754.91 and 61,925.76

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Solution

The fourth proportional to 86,044.95, 118,754.91 and 61,925.76 is: 85,466.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,044.95 : 118,754.91 = 61,925.76 : x
  2. Step 2: Convert to fraction form
    86,044.95/118,754.91 = 61,925.76/x
  3. Step 3: Cross multiply
    86,044.95x = 118,754.91 × 61,925.76
  4. Step 4: Simplify right side
    86,044.95x = 7,353,988,055.48
  5. Step 5: Solve for x
    x = 7,353,988,055.48/86,044.95
  6. Step 6: Final answer
    x = 85,466.82

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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.