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Finding the Fourth Proportional to 315,726.98, 473,259.68 and 147,108.27

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Solution

The fourth proportional to 315,726.98, 473,259.68 and 147,108.27 is: 220,508.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,726.98 : 473,259.68 = 147,108.27 : x
  2. Step 2: Convert to fraction form
    315,726.98/473,259.68 = 147,108.27/x
  3. Step 3: Cross multiply
    315,726.98x = 473,259.68 × 147,108.27
  4. Step 4: Simplify right side
    315,726.98x = 69,620,411,714.31
  5. Step 5: Solve for x
    x = 69,620,411,714.31/315,726.98
  6. Step 6: Final answer
    x = 220,508.27

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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.