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Finding the Fourth Proportional to 93,415.52, 128,913.42 and 59,881.52

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Solution

The fourth proportional to 93,415.52, 128,913.42 and 59,881.52 is: 82,636.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,415.52 : 128,913.42 = 59,881.52 : x
  2. Step 2: Convert to fraction form
    93,415.52/128,913.42 = 59,881.52/x
  3. Step 3: Cross multiply
    93,415.52x = 128,913.42 × 59,881.52
  4. Step 4: Simplify right side
    93,415.52x = 7,719,531,538.00
  5. Step 5: Solve for x
    x = 7,719,531,538.00/93,415.52
  6. Step 6: Final answer
    x = 82,636.50

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1.5x scale

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.