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Finding the Fourth Proportional to 119,423.58, 164,808.51 and 65,712.54

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Solution

The fourth proportional to 119,423.58, 164,808.51 and 65,712.54 is: 90,685.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,423.58 : 164,808.51 = 65,712.54 : x
  2. Step 2: Convert to fraction form
    119,423.58/164,808.51 = 65,712.54/x
  3. Step 3: Cross multiply
    119,423.58x = 164,808.51 × 65,712.54
  4. Step 4: Simplify right side
    119,423.58x = 10,829,985,805.72
  5. Step 5: Solve for x
    x = 10,829,985,805.72/119,423.58
  6. Step 6: Final answer
    x = 90,685.49

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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.