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Finding the Fourth Proportional to 202,901.54, 280,093.80 and 121,258.59

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Solution

The fourth proportional to 202,901.54, 280,093.80 and 121,258.59 is: 167,390.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,901.54 : 280,093.80 = 121,258.59 : x
  2. Step 2: Convert to fraction form
    202,901.54/280,093.80 = 121,258.59/x
  3. Step 3: Cross multiply
    202,901.54x = 280,093.80 × 121,258.59
  4. Step 4: Simplify right side
    202,901.54x = 33,963,779,255.74
  5. Step 5: Solve for x
    x = 33,963,779,255.74/202,901.54
  6. Step 6: Final answer
    x = 167,390.45

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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.