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Finding the Fourth Proportional to 250,952.86, 346,315.53 and 137,782.90

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Solution

The fourth proportional to 250,952.86, 346,315.53 and 137,782.90 is: 190,140.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,952.86 : 346,315.53 = 137,782.90 : x
  2. Step 2: Convert to fraction form
    250,952.86/346,315.53 = 137,782.90/x
  3. Step 3: Cross multiply
    250,952.86x = 346,315.53 × 137,782.90
  4. Step 4: Simplify right side
    250,952.86x = 47,716,358,038.44
  5. Step 5: Solve for x
    x = 47,716,358,038.44/250,952.86
  6. Step 6: Final answer
    x = 190,140.72

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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.