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Finding the Fourth Proportional to 317,873.61, 438,673.59 and 174,646.98

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Solution

The fourth proportional to 317,873.61, 438,673.59 and 174,646.98 is: 241,017.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,873.61 : 438,673.59 = 174,646.98 : x
  2. Step 2: Convert to fraction form
    317,873.61/438,673.59 = 174,646.98/x
  3. Step 3: Cross multiply
    317,873.61x = 438,673.59 × 174,646.98
  4. Step 4: Simplify right side
    317,873.61x = 76,613,017,699.26
  5. Step 5: Solve for x
    x = 76,613,017,699.26/317,873.61
  6. Step 6: Final answer
    x = 241,017.23

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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.