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Finding the Fourth Proportional to 151,816.70, 209,525.51 and 88,154.51

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Solution

The fourth proportional to 151,816.70, 209,525.51 and 88,154.51 is: 121,663.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,816.70 : 209,525.51 = 88,154.51 : x
  2. Step 2: Convert to fraction form
    151,816.70/209,525.51 = 88,154.51/x
  3. Step 3: Cross multiply
    151,816.70x = 209,525.51 × 88,154.51
  4. Step 4: Simplify right side
    151,816.70x = 18,470,618,666.55
  5. Step 5: Solve for x
    x = 18,470,618,666.55/151,816.70
  6. Step 6: Final answer
    x = 121,663.95

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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.