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Finding the Fourth Proportional to 256,625.74, 354,128.10 and 141,897.52

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Solution

The fourth proportional to 256,625.74, 354,128.10 and 141,897.52 is: 195,810.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,625.74 : 354,128.10 = 141,897.52 : x
  2. Step 2: Convert to fraction form
    256,625.74/354,128.10 = 141,897.52/x
  3. Step 3: Cross multiply
    256,625.74x = 354,128.10 × 141,897.52
  4. Step 4: Simplify right side
    256,625.74x = 50,249,899,152.31
  5. Step 5: Solve for x
    x = 50,249,899,152.31/256,625.74
  6. Step 6: Final answer
    x = 195,810.05

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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.