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Finding the Fourth Proportional to 317,326.12, 475,985.53 and 107,111.68

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Solution

The fourth proportional to 317,326.12, 475,985.53 and 107,111.68 is: 160,666.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,326.12 : 475,985.53 = 107,111.68 : x
  2. Step 2: Convert to fraction form
    317,326.12/475,985.53 = 107,111.68/x
  3. Step 3: Cross multiply
    317,326.12x = 475,985.53 × 107,111.68
  4. Step 4: Simplify right side
    317,326.12x = 50,983,609,773.99
  5. Step 5: Solve for x
    x = 50,983,609,773.99/317,326.12
  6. Step 6: Final answer
    x = 160,666.29

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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.