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Finding the Fourth Proportional to 185,689.50, 278,554.31 and 59,285.45

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Solution

The fourth proportional to 185,689.50, 278,554.31 and 59,285.45 is: 88,934.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,689.50 : 278,554.31 = 59,285.45 : x
  2. Step 2: Convert to fraction form
    185,689.50/278,554.31 = 59,285.45/x
  3. Step 3: Cross multiply
    185,689.50x = 278,554.31 × 59,285.45
  4. Step 4: Simplify right side
    185,689.50x = 16,514,218,240.07
  5. Step 5: Solve for x
    x = 16,514,218,240.07/185,689.50
  6. Step 6: Final answer
    x = 88,934.58

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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.