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Finding the Fourth Proportional to 104,763.61, 144,473.25 and 70,386.01

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Solution

The fourth proportional to 104,763.61, 144,473.25 and 70,386.01 is: 97,065.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,763.61 : 144,473.25 = 70,386.01 : x
  2. Step 2: Convert to fraction form
    104,763.61/144,473.25 = 70,386.01/x
  3. Step 3: Cross multiply
    104,763.61x = 144,473.25 × 70,386.01
  4. Step 4: Simplify right side
    104,763.61x = 10,168,895,619.23
  5. Step 5: Solve for x
    x = 10,168,895,619.23/104,763.61
  6. Step 6: Final answer
    x = 97,065.15

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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.