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Finding the Fourth Proportional to 113,312.10, 169,968.15 and 93,612.90

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Solution

The fourth proportional to 113,312.10, 169,968.15 and 93,612.90 is: 140,419.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,312.10 : 169,968.15 = 93,612.90 : x
  2. Step 2: Convert to fraction form
    113,312.10/169,968.15 = 93,612.90/x
  3. Step 3: Cross multiply
    113,312.10x = 169,968.15 × 93,612.90
  4. Step 4: Simplify right side
    113,312.10x = 15,911,211,429.14
  5. Step 5: Solve for x
    x = 15,911,211,429.14/113,312.10
  6. Step 6: Final answer
    x = 140,419.35

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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.