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Finding the Fourth Proportional to 572,583.80, 858,875.70 and 146,118.80

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Solution

The fourth proportional to 572,583.80, 858,875.70 and 146,118.80 is: 219,178.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,583.80 : 858,875.70 = 146,118.80 : x
  2. Step 2: Convert to fraction form
    572,583.80/858,875.70 = 146,118.80/x
  3. Step 3: Cross multiply
    572,583.80x = 858,875.70 × 146,118.80
  4. Step 4: Simplify right side
    572,583.80x = 125,497,886,633.16
  5. Step 5: Solve for x
    x = 125,497,886,633.16/572,583.80
  6. Step 6: Final answer
    x = 219,178.20

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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.