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Finding the Fourth Proportional to 219,203.72, 302,468.69 and 133,117.93

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Solution

The fourth proportional to 219,203.72, 302,468.69 and 133,117.93 is: 183,683.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,203.72 : 302,468.69 = 133,117.93 : x
  2. Step 2: Convert to fraction form
    219,203.72/302,468.69 = 133,117.93/x
  3. Step 3: Cross multiply
    219,203.72x = 302,468.69 × 133,117.93
  4. Step 4: Simplify right side
    219,203.72x = 40,264,005,902.61
  5. Step 5: Solve for x
    x = 40,264,005,902.61/219,203.72
  6. Step 6: Final answer
    x = 183,683.04

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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.