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Finding the Fourth Proportional to 219,294.32, 302,593.95 and 122,486.25

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Solution

The fourth proportional to 219,294.32, 302,593.95 and 122,486.25 is: 169,013.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,294.32 : 302,593.95 = 122,486.25 : x
  2. Step 2: Convert to fraction form
    219,294.32/302,593.95 = 122,486.25/x
  3. Step 3: Cross multiply
    219,294.32x = 302,593.95 × 122,486.25
  4. Step 4: Simplify right side
    219,294.32x = 37,063,596,082.79
  5. Step 5: Solve for x
    x = 37,063,596,082.79/219,294.32
  6. Step 6: Final answer
    x = 169,013.03

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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.