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Finding the Fourth Proportional to 93,087.92, 128,461.28 and 50,646.40

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Solution

The fourth proportional to 93,087.92, 128,461.28 and 50,646.40 is: 69,892.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,087.92 : 128,461.28 = 50,646.40 : x
  2. Step 2: Convert to fraction form
    93,087.92/128,461.28 = 50,646.40/x
  3. Step 3: Cross multiply
    93,087.92x = 128,461.28 × 50,646.40
  4. Step 4: Simplify right side
    93,087.92x = 6,506,101,371.39
  5. Step 5: Solve for x
    x = 6,506,101,371.39/93,087.92
  6. Step 6: Final answer
    x = 69,892.01

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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.