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Finding the Fourth Proportional to 99,547.94, 148,971.08 and 62,125.61

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Solution

The fourth proportional to 99,547.94, 148,971.08 and 62,125.61 is: 92,969.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,547.94 : 148,971.08 = 62,125.61 : x
  2. Step 2: Convert to fraction form
    99,547.94/148,971.08 = 62,125.61/x
  3. Step 3: Cross multiply
    99,547.94x = 148,971.08 × 62,125.61
  4. Step 4: Simplify right side
    99,547.94x = 9,254,918,627.82
  5. Step 5: Solve for x
    x = 9,254,918,627.82/99,547.94
  6. Step 6: Final answer
    x = 92,969.46

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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.