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Finding the Fourth Proportional to 161,658.75, 242,488.56 and 56,477.70

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Solution

The fourth proportional to 161,658.75, 242,488.56 and 56,477.70 is: 84,716.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,658.75 : 242,488.56 = 56,477.70 : x
  2. Step 2: Convert to fraction form
    161,658.75/242,488.56 = 56,477.70/x
  3. Step 3: Cross multiply
    161,658.75x = 242,488.56 × 56,477.70
  4. Step 4: Simplify right side
    161,658.75x = 13,695,196,145.11
  5. Step 5: Solve for x
    x = 13,695,196,145.11/161,658.75
  6. Step 6: Final answer
    x = 84,716.70

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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.