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Finding the Fourth Proportional to 196,003.40, 293,702.70 and 145,848.20

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Solution

The fourth proportional to 196,003.40, 293,702.70 and 145,848.20 is: 218,547.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    196,003.40 : 293,702.70 = 145,848.20 : x
  2. Step 2: Convert to fraction form
    196,003.40/293,702.70 = 145,848.20/x
  3. Step 3: Cross multiply
    196,003.40x = 293,702.70 × 145,848.20
  4. Step 4: Simplify right side
    196,003.40x = 42,836,010,130.14
  5. Step 5: Solve for x
    x = 42,836,010,130.14/196,003.40
  6. Step 6: Final answer
    x = 218,547.28

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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.