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Finding the Fourth Proportional to 160,756.87, 221,686.71 and 148,043.11

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Solution

The fourth proportional to 160,756.87, 221,686.71 and 148,043.11 is: 204,154.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,756.87 : 221,686.71 = 148,043.11 : x
  2. Step 2: Convert to fraction form
    160,756.87/221,686.71 = 148,043.11/x
  3. Step 3: Cross multiply
    160,756.87x = 221,686.71 × 148,043.11
  4. Step 4: Simplify right side
    160,756.87x = 32,819,189,994.07
  5. Step 5: Solve for x
    x = 32,819,189,994.07/160,756.87
  6. Step 6: Final answer
    x = 204,154.20

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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.