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Finding the Fourth Proportional to 156,691.40, 235,058.70 and 56,827.40

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Solution

The fourth proportional to 156,691.40, 235,058.70 and 56,827.40 is: 85,248.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,691.40 : 235,058.70 = 56,827.40 : x
  2. Step 2: Convert to fraction form
    156,691.40/235,058.70 = 56,827.40/x
  3. Step 3: Cross multiply
    156,691.40x = 235,058.70 × 56,827.40
  4. Step 4: Simplify right side
    156,691.40x = 13,357,774,768.38
  5. Step 5: Solve for x
    x = 13,357,774,768.38/156,691.40
  6. Step 6: Final answer
    x = 85,248.93

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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.