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Finding the Fourth Proportional to 86,703.36, 130,071.36 and 27,543.36

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Solution

The fourth proportional to 86,703.36, 130,071.36 and 27,543.36 is: 41,320.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,703.36 : 130,071.36 = 27,543.36 : x
  2. Step 2: Convert to fraction form
    86,703.36/130,071.36 = 27,543.36/x
  3. Step 3: Cross multiply
    86,703.36x = 130,071.36 × 27,543.36
  4. Step 4: Simplify right side
    86,703.36x = 3,582,602,294.17
  5. Step 5: Solve for x
    x = 3,582,602,294.17/86,703.36
  6. Step 6: Final answer
    x = 41,320.22

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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.