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Finding the Fourth Proportional to 124,705.60, 172,051.04 and 70,977.16

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Solution

The fourth proportional to 124,705.60, 172,051.04 and 70,977.16 is: 97,924.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,705.60 : 172,051.04 = 70,977.16 : x
  2. Step 2: Convert to fraction form
    124,705.60/172,051.04 = 70,977.16/x
  3. Step 3: Cross multiply
    124,705.60x = 172,051.04 × 70,977.16
  4. Step 4: Simplify right side
    124,705.60x = 12,211,694,194.25
  5. Step 5: Solve for x
    x = 12,211,694,194.25/124,705.60
  6. Step 6: Final answer
    x = 97,924.18

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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.