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Finding the Fourth Proportional to 134,482.10, 201,664.80 and 45,711.76

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Solution

The fourth proportional to 134,482.10, 201,664.80 and 45,711.76 is: 68,547.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    134,482.10 : 201,664.80 = 45,711.76 : x
  2. Step 2: Convert to fraction form
    134,482.10/201,664.80 = 45,711.76/x
  3. Step 3: Cross multiply
    134,482.10x = 201,664.80 × 45,711.76
  4. Step 4: Simplify right side
    134,482.10x = 9,218,452,938.05
  5. Step 5: Solve for x
    x = 9,218,452,938.05/134,482.10
  6. Step 6: Final answer
    x = 68,547.81

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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.