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Finding the Fourth Proportional to 140,417.96, 210,685.54 and 61,588.76

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Solution

The fourth proportional to 140,417.96, 210,685.54 and 61,588.76 is: 92,408.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,417.96 : 210,685.54 = 61,588.76 : x
  2. Step 2: Convert to fraction form
    140,417.96/210,685.54 = 61,588.76/x
  3. Step 3: Cross multiply
    140,417.96x = 210,685.54 × 61,588.76
  4. Step 4: Simplify right side
    140,417.96x = 12,975,861,158.53
  5. Step 5: Solve for x
    x = 12,975,861,158.53/140,417.96
  6. Step 6: Final answer
    x = 92,408.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.