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Finding the Fourth Proportional to 318,258.96, 439,208.64 and 175,030.08

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Solution

The fourth proportional to 318,258.96, 439,208.64 and 175,030.08 is: 241,547.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,258.96 : 439,208.64 = 175,030.08 : x
  2. Step 2: Convert to fraction form
    318,258.96/439,208.64 = 175,030.08/x
  3. Step 3: Cross multiply
    318,258.96x = 439,208.64 × 175,030.08
  4. Step 4: Simplify right side
    318,258.96x = 76,874,723,395.89
  5. Step 5: Solve for x
    x = 76,874,723,395.89/318,258.96
  6. Step 6: Final answer
    x = 241,547.71

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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.