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Finding the Fourth Proportional to 153,608.84, 230,431.68 and 145,210.76

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Solution

The fourth proportional to 153,608.84, 230,431.68 and 145,210.76 is: 217,833.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,608.84 : 230,431.68 = 145,210.76 : x
  2. Step 2: Convert to fraction form
    153,608.84/230,431.68 = 145,210.76/x
  3. Step 3: Cross multiply
    153,608.84x = 230,431.68 × 145,210.76
  4. Step 4: Simplify right side
    153,608.84x = 33,461,159,380.88
  5. Step 5: Solve for x
    x = 33,461,159,380.88/153,608.84
  6. Step 6: Final answer
    x = 217,833.55

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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.