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Finding the Fourth Proportional to 235,122.59, 324,603.66 and 154,783.65

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Solution

The fourth proportional to 235,122.59, 324,603.66 and 154,783.65 is: 213,689.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,122.59 : 324,603.66 = 154,783.65 : x
  2. Step 2: Convert to fraction form
    235,122.59/324,603.66 = 154,783.65/x
  3. Step 3: Cross multiply
    235,122.59x = 324,603.66 × 154,783.65
  4. Step 4: Simplify right side
    235,122.59x = 50,243,341,095.86
  5. Step 5: Solve for x
    x = 50,243,341,095.86/235,122.59
  6. Step 6: Final answer
    x = 213,689.98

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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.