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Finding the Fourth Proportional to 220,315.94, 304,036.30 and 124,829.09

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Solution

The fourth proportional to 220,315.94, 304,036.30 and 124,829.09 is: 172,264.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,315.94 : 304,036.30 = 124,829.09 : x
  2. Step 2: Convert to fraction form
    220,315.94/304,036.30 = 124,829.09/x
  3. Step 3: Cross multiply
    220,315.94x = 304,036.30 × 124,829.09
  4. Step 4: Simplify right side
    220,315.94x = 37,952,574,655.97
  5. Step 5: Solve for x
    x = 37,952,574,655.97/220,315.94
  6. Step 6: Final answer
    x = 172,264.32

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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.