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Finding the Fourth Proportional to 114,599.40, 172,028.70 and 88,420.20

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Solution

The fourth proportional to 114,599.40, 172,028.70 and 88,420.20 is: 132,730.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,599.40 : 172,028.70 = 88,420.20 : x
  2. Step 2: Convert to fraction form
    114,599.40/172,028.70 = 88,420.20/x
  3. Step 3: Cross multiply
    114,599.40x = 172,028.70 × 88,420.20
  4. Step 4: Simplify right side
    114,599.40x = 15,210,812,059.74
  5. Step 5: Solve for x
    x = 15,210,812,059.74/114,599.40
  6. Step 6: Final answer
    x = 132,730.29

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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.