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Finding the Fourth Proportional to 153,157.65, 229,706.18 and 145,562.58

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Solution

The fourth proportional to 153,157.65, 229,706.18 and 145,562.58 is: 218,315.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,157.65 : 229,706.18 = 145,562.58 : x
  2. Step 2: Convert to fraction form
    153,157.65/229,706.18 = 145,562.58/x
  3. Step 3: Cross multiply
    153,157.65x = 229,706.18 × 145,562.58
  4. Step 4: Simplify right side
    153,157.65x = 33,436,624,202.74
  5. Step 5: Solve for x
    x = 33,436,624,202.74/153,157.65
  6. Step 6: Final answer
    x = 218,315.08

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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.