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Finding the Fourth Proportional to 277,603.58, 416,343.08 and 127,699.90

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Solution

The fourth proportional to 277,603.58, 416,343.08 and 127,699.90 is: 191,521.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,603.58 : 416,343.08 = 127,699.90 : x
  2. Step 2: Convert to fraction form
    277,603.58/416,343.08 = 127,699.90/x
  3. Step 3: Cross multiply
    277,603.58x = 416,343.08 × 127,699.90
  4. Step 4: Simplify right side
    277,603.58x = 53,166,969,681.69
  5. Step 5: Solve for x
    x = 53,166,969,681.69/277,603.58
  6. Step 6: Final answer
    x = 191,521.20

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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.