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Finding the Fourth Proportional to 255,661.08, 353,449.98 and 191,888.16

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Solution

The fourth proportional to 255,661.08, 353,449.98 and 191,888.16 is: 265,284.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,661.08 : 353,449.98 = 191,888.16 : x
  2. Step 2: Convert to fraction form
    255,661.08/353,449.98 = 191,888.16/x
  3. Step 3: Cross multiply
    255,661.08x = 353,449.98 × 191,888.16
  4. Step 4: Simplify right side
    255,661.08x = 67,822,866,314.24
  5. Step 5: Solve for x
    x = 67,822,866,314.24/255,661.08
  6. Step 6: Final answer
    x = 265,284.28

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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.