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Finding the Fourth Proportional to 153,454.65, 211,598.16 and 105,064.54

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Solution

The fourth proportional to 153,454.65, 211,598.16 and 105,064.54 is: 144,873.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,454.65 : 211,598.16 = 105,064.54 : x
  2. Step 2: Convert to fraction form
    153,454.65/211,598.16 = 105,064.54/x
  3. Step 3: Cross multiply
    153,454.65x = 211,598.16 × 105,064.54
  4. Step 4: Simplify right side
    153,454.65x = 22,231,462,422.26
  5. Step 5: Solve for x
    x = 22,231,462,422.26/153,454.65
  6. Step 6: Final answer
    x = 144,873.18

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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.