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Finding the Fourth Proportional to 355,065.80, 532,145.10 and 144,465.80

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Solution

The fourth proportional to 355,065.80, 532,145.10 and 144,465.80 is: 216,514.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,065.80 : 532,145.10 = 144,465.80 : x
  2. Step 2: Convert to fraction form
    355,065.80/532,145.10 = 144,465.80/x
  3. Step 3: Cross multiply
    355,065.80x = 532,145.10 × 144,465.80
  4. Step 4: Simplify right side
    355,065.80x = 76,876,767,587.58
  5. Step 5: Solve for x
    x = 76,876,767,587.58/355,065.80
  6. Step 6: Final answer
    x = 216,514.14

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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.