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Finding the Fourth Proportional to 153,607.84, 230,430.18 and 145,209.76

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Solution

The fourth proportional to 153,607.84, 230,430.18 and 145,209.76 is: 217,832.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,607.84 : 230,430.18 = 145,209.76 : x
  2. Step 2: Convert to fraction form
    153,607.84/230,430.18 = 145,209.76/x
  3. Step 3: Cross multiply
    153,607.84x = 230,430.18 × 145,209.76
  4. Step 4: Simplify right side
    153,607.84x = 33,460,711,134.56
  5. Step 5: Solve for x
    x = 33,460,711,134.56/153,607.84
  6. Step 6: Final answer
    x = 217,832.05

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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.