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Finding the Fourth Proportional to 175,071.60, 262,639.80 and 56,746.80

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Solution

The fourth proportional to 175,071.60, 262,639.80 and 56,746.80 is: 85,130.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    175,071.60 : 262,639.80 = 56,746.80 : x
  2. Step 2: Convert to fraction form
    175,071.60/262,639.80 = 56,746.80/x
  3. Step 3: Cross multiply
    175,071.60x = 262,639.80 × 56,746.80
  4. Step 4: Simplify right side
    175,071.60x = 14,903,968,202.64
  5. Step 5: Solve for x
    x = 14,903,968,202.64/175,071.60
  6. Step 6: Final answer
    x = 85,130.70

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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.