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Finding the Fourth Proportional to 173,923.60, 260,820.60 and 121,176.40

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Solution

The fourth proportional to 173,923.60, 260,820.60 and 121,176.40 is: 181,719.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,923.60 : 260,820.60 = 121,176.40 : x
  2. Step 2: Convert to fraction form
    173,923.60/260,820.60 = 121,176.40/x
  3. Step 3: Cross multiply
    173,923.60x = 260,820.60 × 121,176.40
  4. Step 4: Simplify right side
    173,923.60x = 31,605,301,353.84
  5. Step 5: Solve for x
    x = 31,605,301,353.84/173,923.60
  6. Step 6: Final answer
    x = 181,719.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.