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Finding the Fourth Proportional to 257,732.99, 355,554.95 and 167,111.91

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Solution

The fourth proportional to 257,732.99, 355,554.95 and 167,111.91 is: 230,538.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,732.99 : 355,554.95 = 167,111.91 : x
  2. Step 2: Convert to fraction form
    257,732.99/355,554.95 = 167,111.91/x
  3. Step 3: Cross multiply
    257,732.99x = 355,554.95 × 167,111.91
  4. Step 4: Simplify right side
    257,732.99x = 59,417,465,026.68
  5. Step 5: Solve for x
    x = 59,417,465,026.68/257,732.99
  6. Step 6: Final answer
    x = 230,538.85

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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.