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Finding the Fourth Proportional to 225,300.30, 310,914.99 and 124,701.90

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Solution

The fourth proportional to 225,300.30, 310,914.99 and 124,701.90 is: 172,088.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,300.30 : 310,914.99 = 124,701.90 : x
  2. Step 2: Convert to fraction form
    225,300.30/310,914.99 = 124,701.90/x
  3. Step 3: Cross multiply
    225,300.30x = 310,914.99 × 124,701.90
  4. Step 4: Simplify right side
    225,300.30x = 38,771,689,991.48
  5. Step 5: Solve for x
    x = 38,771,689,991.48/225,300.30
  6. Step 6: Final answer
    x = 172,088.94

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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.