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Finding the Fourth Proportional to 123,521.76, 185,282.64 and 70,946.28

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Solution

The fourth proportional to 123,521.76, 185,282.64 and 70,946.28 is: 106,419.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,521.76 : 185,282.64 = 70,946.28 : x
  2. Step 2: Convert to fraction form
    123,521.76/185,282.64 = 70,946.28/x
  3. Step 3: Cross multiply
    123,521.76x = 185,282.64 × 70,946.28
  4. Step 4: Simplify right side
    123,521.76x = 13,145,114,056.58
  5. Step 5: Solve for x
    x = 13,145,114,056.58/123,521.76
  6. Step 6: Final answer
    x = 106,419.42

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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.