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Finding the Fourth Proportional to 124,670.40, 187,005.60 and 122,702.10

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Solution

The fourth proportional to 124,670.40, 187,005.60 and 122,702.10 is: 184,053.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,670.40 : 187,005.60 = 122,702.10 : x
  2. Step 2: Convert to fraction form
    124,670.40/187,005.60 = 122,702.10/x
  3. Step 3: Cross multiply
    124,670.40x = 187,005.60 × 122,702.10
  4. Step 4: Simplify right side
    124,670.40x = 22,945,979,831.76
  5. Step 5: Solve for x
    x = 22,945,979,831.76/124,670.40
  6. Step 6: Final answer
    x = 184,053.15

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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.