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Finding the Fourth Proportional to 114,547.80, 171,864.90 and 55,435.80

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Solution

The fourth proportional to 114,547.80, 171,864.90 and 55,435.80 is: 83,174.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,547.80 : 171,864.90 = 55,435.80 : x
  2. Step 2: Convert to fraction form
    114,547.80/171,864.90 = 55,435.80/x
  3. Step 3: Cross multiply
    114,547.80x = 171,864.90 × 55,435.80
  4. Step 4: Simplify right side
    114,547.80x = 9,527,468,223.42
  5. Step 5: Solve for x
    x = 9,527,468,223.42/114,547.80
  6. Step 6: Final answer
    x = 83,174.61

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1.5x scale

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.