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Finding the Fourth Proportional to 92,869.93, 128,154.33 and 51,474.23

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Solution

The fourth proportional to 92,869.93, 128,154.33 and 51,474.23 is: 71,031.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,869.93 : 128,154.33 = 51,474.23 : x
  2. Step 2: Convert to fraction form
    92,869.93/128,154.33 = 51,474.23/x
  3. Step 3: Cross multiply
    92,869.93x = 128,154.33 × 51,474.23
  4. Step 4: Simplify right side
    92,869.93x = 6,596,645,873.82
  5. Step 5: Solve for x
    x = 6,596,645,873.82/92,869.93
  6. Step 6: Final answer
    x = 71,031.02

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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.