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Finding the Fourth Proportional to 118,417.68, 163,525.52 and 76,050.02

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Solution

The fourth proportional to 118,417.68, 163,525.52 and 76,050.02 is: 105,019.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,417.68 : 163,525.52 = 76,050.02 : x
  2. Step 2: Convert to fraction form
    118,417.68/163,525.52 = 76,050.02/x
  3. Step 3: Cross multiply
    118,417.68x = 163,525.52 × 76,050.02
  4. Step 4: Simplify right side
    118,417.68x = 12,436,119,066.51
  5. Step 5: Solve for x
    x = 12,436,119,066.51/118,417.68
  6. Step 6: Final answer
    x = 105,019.11

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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.