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Finding the Fourth Proportional to 114,311.60, 157,748.28 and 64,012.40

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Solution

The fourth proportional to 114,311.60, 157,748.28 and 64,012.40 is: 88,336.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,311.60 : 157,748.28 = 64,012.40 : x
  2. Step 2: Convert to fraction form
    114,311.60/157,748.28 = 64,012.40/x
  3. Step 3: Cross multiply
    114,311.60x = 157,748.28 × 64,012.40
  4. Step 4: Simplify right side
    114,311.60x = 10,097,845,998.67
  5. Step 5: Solve for x
    x = 10,097,845,998.67/114,311.60
  6. Step 6: Final answer
    x = 88,336.14

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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.