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Finding the Fourth Proportional to 141,888.61, 195,602.75 and 111,621.32

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Solution

The fourth proportional to 141,888.61, 195,602.75 and 111,621.32 is: 153,877.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,888.61 : 195,602.75 = 111,621.32 : x
  2. Step 2: Convert to fraction form
    141,888.61/195,602.75 = 111,621.32/x
  3. Step 3: Cross multiply
    141,888.61x = 195,602.75 × 111,621.32
  4. Step 4: Simplify right side
    141,888.61x = 21,833,437,630.67
  5. Step 5: Solve for x
    x = 21,833,437,630.67/141,888.61
  6. Step 6: Final answer
    x = 153,877.31

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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.