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Finding the Fourth Proportional to 250,390.48, 345,870.12 and 186,617.56

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Solution

The fourth proportional to 250,390.48, 345,870.12 and 186,617.56 is: 257,779.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,390.48 : 345,870.12 = 186,617.56 : x
  2. Step 2: Convert to fraction form
    250,390.48/345,870.12 = 186,617.56/x
  3. Step 3: Cross multiply
    250,390.48x = 345,870.12 × 186,617.56
  4. Step 4: Simplify right side
    250,390.48x = 64,545,437,871.31
  5. Step 5: Solve for x
    x = 64,545,437,871.31/250,390.48
  6. Step 6: Final answer
    x = 257,779.12

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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.