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Finding the Fourth Proportional to 153,892.40, 230,838.60 and 70,948.40

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Solution

The fourth proportional to 153,892.40, 230,838.60 and 70,948.40 is: 106,422.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,892.40 : 230,838.60 = 70,948.40 : x
  2. Step 2: Convert to fraction form
    153,892.40/230,838.60 = 70,948.40/x
  3. Step 3: Cross multiply
    153,892.40x = 230,838.60 × 70,948.40
  4. Step 4: Simplify right side
    153,892.40x = 16,377,629,328.24
  5. Step 5: Solve for x
    x = 16,377,629,328.24/153,892.40
  6. Step 6: Final answer
    x = 106,422.60

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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.