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Finding the Fourth Proportional to 161,587.60, 242,492.11 and 56,406.57

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Solution

The fourth proportional to 161,587.60, 242,492.11 and 56,406.57 is: 84,648.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,587.60 : 242,492.11 = 56,406.57 : x
  2. Step 2: Convert to fraction form
    161,587.60/242,492.11 = 56,406.57/x
  3. Step 3: Cross multiply
    161,587.60x = 242,492.11 × 56,406.57
  4. Step 4: Simplify right side
    161,587.60x = 13,678,148,177.16
  5. Step 5: Solve for x
    x = 13,678,148,177.16/161,587.60
  6. Step 6: Final answer
    x = 84,648.50

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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.