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Finding the Fourth Proportional to 292,443.70, 438,082.35 and 167,638.90

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Solution

The fourth proportional to 292,443.70, 438,082.35 and 167,638.90 is: 251,124.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,443.70 : 438,082.35 = 167,638.90 : x
  2. Step 2: Convert to fraction form
    292,443.70/438,082.35 = 167,638.90/x
  3. Step 3: Cross multiply
    292,443.70x = 438,082.35 × 167,638.90
  4. Step 4: Simplify right side
    292,443.70x = 73,439,643,263.42
  5. Step 5: Solve for x
    x = 73,439,643,263.42/292,443.70
  6. Step 6: Final answer
    x = 251,124.04

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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.