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Finding the Fourth Proportional to 242,403.48, 334,515.96 and 134,974.80

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Solution

The fourth proportional to 242,403.48, 334,515.96 and 134,974.80 is: 186,264.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    242,403.48 : 334,515.96 = 134,974.80 : x
  2. Step 2: Convert to fraction form
    242,403.48/334,515.96 = 134,974.80/x
  3. Step 3: Cross multiply
    242,403.48x = 334,515.96 × 134,974.80
  4. Step 4: Simplify right side
    242,403.48x = 45,151,224,797.81
  5. Step 5: Solve for x
    x = 45,151,224,797.81/242,403.48
  6. Step 6: Final answer
    x = 186,264.75

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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.