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Finding the Fourth Proportional to 301,259.95, 415,738.54 and 165,294.76

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Solution

The fourth proportional to 301,259.95, 415,738.54 and 165,294.76 is: 228,106.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,259.95 : 415,738.54 = 165,294.76 : x
  2. Step 2: Convert to fraction form
    301,259.95/415,738.54 = 165,294.76/x
  3. Step 3: Cross multiply
    301,259.95x = 415,738.54 × 165,294.76
  4. Step 4: Simplify right side
    301,259.95x = 68,719,402,192.05
  5. Step 5: Solve for x
    x = 68,719,402,192.05/301,259.95
  6. Step 6: Final answer
    x = 228,106.66

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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.