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Finding the Fourth Proportional to 354,865.84, 532,386.08 and 105,547.84

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Solution

The fourth proportional to 354,865.84, 532,386.08 and 105,547.84 is: 158,347.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,865.84 : 532,386.08 = 105,547.84 : x
  2. Step 2: Convert to fraction form
    354,865.84/532,386.08 = 105,547.84/x
  3. Step 3: Cross multiply
    354,865.84x = 532,386.08 × 105,547.84
  4. Step 4: Simplify right side
    354,865.84x = 56,192,200,790.07
  5. Step 5: Solve for x
    x = 56,192,200,790.07/354,865.84
  6. Step 6: Final answer
    x = 158,347.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.