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Finding the Fourth Proportional to 113,953.80, 157,256.10 and 63,652.80

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Solution

The fourth proportional to 113,953.80, 157,256.10 and 63,652.80 is: 87,840.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    113,953.80 : 157,256.10 = 63,652.80 : x
  2. Step 2: Convert to fraction form
    113,953.80/157,256.10 = 63,652.80/x
  3. Step 3: Cross multiply
    113,953.80x = 157,256.10 × 63,652.80
  4. Step 4: Simplify right side
    113,953.80x = 10,009,791,082.08
  5. Step 5: Solve for x
    x = 10,009,791,082.08/113,953.80
  6. Step 6: Final answer
    x = 87,840.78

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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.