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Finding the Fourth Proportional to 261,256.77, 360,567.69 and 153,836.76

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Solution

The fourth proportional to 261,256.77, 360,567.69 and 153,836.76 is: 212,314.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,256.77 : 360,567.69 = 153,836.76 : x
  2. Step 2: Convert to fraction form
    261,256.77/360,567.69 = 153,836.76/x
  3. Step 3: Cross multiply
    261,256.77x = 360,567.69 × 153,836.76
  4. Step 4: Simplify right side
    261,256.77x = 55,468,565,190.28
  5. Step 5: Solve for x
    x = 55,468,565,190.28/261,256.77
  6. Step 6: Final answer
    x = 212,314.36

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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.