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Finding the Fourth Proportional to 115,547.99, 159,457.28 and 67,802.13

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Solution

The fourth proportional to 115,547.99, 159,457.28 and 67,802.13 is: 93,567.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,547.99 : 159,457.28 = 67,802.13 : x
  2. Step 2: Convert to fraction form
    115,547.99/159,457.28 = 67,802.13/x
  3. Step 3: Cross multiply
    115,547.99x = 159,457.28 × 67,802.13
  4. Step 4: Simplify right side
    115,547.99x = 10,811,542,889.00
  5. Step 5: Solve for x
    x = 10,811,542,889.00/115,547.99
  6. Step 6: Final answer
    x = 93,567.56

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1.5x scale

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.