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Finding the Fourth Proportional to 151,875.79, 209,546.52 and 87,341.52

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Solution

The fourth proportional to 151,875.79, 209,546.52 and 87,341.52 is: 120,507.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,875.79 : 209,546.52 = 87,341.52 : x
  2. Step 2: Convert to fraction form
    151,875.79/209,546.52 = 87,341.52/x
  3. Step 3: Cross multiply
    151,875.79x = 209,546.52 × 87,341.52
  4. Step 4: Simplify right side
    151,875.79x = 18,302,111,567.51
  5. Step 5: Solve for x
    x = 18,302,111,567.51/151,875.79
  6. Step 6: Final answer
    x = 120,507.10

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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.