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Finding the Fourth Proportional to 133,058.90, 199,588.35 and 127,810.10

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Solution

The fourth proportional to 133,058.90, 199,588.35 and 127,810.10 is: 191,715.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,058.90 : 199,588.35 = 127,810.10 : x
  2. Step 2: Convert to fraction form
    133,058.90/199,588.35 = 127,810.10/x
  3. Step 3: Cross multiply
    133,058.90x = 199,588.35 × 127,810.10
  4. Step 4: Simplify right side
    133,058.90x = 25,509,406,972.34
  5. Step 5: Solve for x
    x = 25,509,406,972.34/133,058.90
  6. Step 6: Final answer
    x = 191,715.15

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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.