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Finding the Fourth Proportional to 93,987.86, 129,703.26 and 51,547.28

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Solution

The fourth proportional to 93,987.86, 129,703.26 and 51,547.28 is: 71,135.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,987.86 : 129,703.26 = 51,547.28 : x
  2. Step 2: Convert to fraction form
    93,987.86/129,703.26 = 51,547.28/x
  3. Step 3: Cross multiply
    93,987.86x = 129,703.26 × 51,547.28
  4. Step 4: Simplify right side
    93,987.86x = 6,685,850,260.13
  5. Step 5: Solve for x
    x = 6,685,850,260.13/93,987.86
  6. Step 6: Final answer
    x = 71,135.25

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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.