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Finding the Fourth Proportional to 158,586.80, 218,859.90 and 104,777.42

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Solution

The fourth proportional to 158,586.80, 218,859.90 and 104,777.42 is: 144,599.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,586.80 : 218,859.90 = 104,777.42 : x
  2. Step 2: Convert to fraction form
    158,586.80/218,859.90 = 104,777.42/x
  3. Step 3: Cross multiply
    158,586.80x = 218,859.90 × 104,777.42
  4. Step 4: Simplify right side
    158,586.80x = 22,931,575,663.46
  5. Step 5: Solve for x
    x = 22,931,575,663.46/158,586.80
  6. Step 6: Final answer
    x = 144,599.52

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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.