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Finding the Fourth Proportional to 93,117.79, 128,498.56 and 50,676.22

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Solution

The fourth proportional to 93,117.79, 128,498.56 and 50,676.22 is: 69,931.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,117.79 : 128,498.56 = 50,676.22 : x
  2. Step 2: Convert to fraction form
    93,117.79/128,498.56 = 50,676.22/x
  3. Step 3: Cross multiply
    93,117.79x = 128,498.56 × 50,676.22
  4. Step 4: Simplify right side
    93,117.79x = 6,511,821,296.24
  5. Step 5: Solve for x
    x = 6,511,821,296.24/93,117.79
  6. Step 6: Final answer
    x = 69,931.01

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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.