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Finding the Fourth Proportional to 228,073.50, 314,731.53 and 124,705.80

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Solution

The fourth proportional to 228,073.50, 314,731.53 and 124,705.80 is: 172,088.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,073.50 : 314,731.53 = 124,705.80 : x
  2. Step 2: Convert to fraction form
    228,073.50/314,731.53 = 124,705.80/x
  3. Step 3: Cross multiply
    228,073.50x = 314,731.53 × 124,705.80
  4. Step 4: Simplify right side
    228,073.50x = 39,248,847,233.87
  5. Step 5: Solve for x
    x = 39,248,847,233.87/228,073.50
  6. Step 6: Final answer
    x = 172,088.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.