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Finding the Fourth Proportional to 93,375, 128,857.50 and 59,841

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Solution

The fourth proportional to 93,375, 128,857.50 and 59,841 is: 82,580.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,375 : 128,857.50 = 59,841 : x
  2. Step 2: Convert to fraction form
    93,375/128,857.50 = 59,841/x
  3. Step 3: Cross multiply
    93,375x = 128,857.50 × 59,841
  4. Step 4: Simplify right side
    93,375x = 7,710,961,657.50
  5. Step 5: Solve for x
    x = 7,710,961,657.50/93,375
  6. Step 6: Final answer
    x = 82,580.58

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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.