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Finding the Fourth Proportional to 93,916.80, 128,833.38 and 88,832.16

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Solution

The fourth proportional to 93,916.80, 128,833.38 and 88,832.16 is: 121,858.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,916.80 : 128,833.38 = 88,832.16 : x
  2. Step 2: Convert to fraction form
    93,916.80/128,833.38 = 88,832.16/x
  3. Step 3: Cross multiply
    93,916.80x = 128,833.38 × 88,832.16
  4. Step 4: Simplify right side
    93,916.80x = 11,444,547,425.50
  5. Step 5: Solve for x
    x = 11,444,547,425.50/93,916.80
  6. Step 6: Final answer
    x = 121,858.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.