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Finding the Fourth Proportional to 224,640.61, 310,005.56 and 122,666.81

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Solution

The fourth proportional to 224,640.61, 310,005.56 and 122,666.81 is: 169,281.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    224,640.61 : 310,005.56 = 122,666.81 : x
  2. Step 2: Convert to fraction form
    224,640.61/310,005.56 = 122,666.81/x
  3. Step 3: Cross multiply
    224,640.61x = 310,005.56 × 122,666.81
  4. Step 4: Simplify right side
    224,640.61x = 38,027,391,884.10
  5. Step 5: Solve for x
    x = 38,027,391,884.10/224,640.61
  6. Step 6: Final answer
    x = 169,281.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.