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Finding the Fourth Proportional to 113,818.84, 157,084.86 and 63,528.28

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Solution

The fourth proportional to 113,818.84, 157,084.86 and 63,528.28 is: 87,677.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,818.84 : 157,084.86 = 63,528.28 : x
  2. Step 2: Convert to fraction form
    113,818.84/157,084.86 = 63,528.28/x
  3. Step 3: Cross multiply
    113,818.84x = 157,084.86 × 63,528.28
  4. Step 4: Simplify right side
    113,818.84x = 9,979,330,969.84
  5. Step 5: Solve for x
    x = 9,979,330,969.84/113,818.84
  6. Step 6: Final answer
    x = 87,677.32

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1.5x scale

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.