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Finding the Fourth Proportional to 93,386.77, 128,873.14 and 53,100.53

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Solution

The fourth proportional to 93,386.77, 128,873.14 and 53,100.53 is: 73,278.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,386.77 : 128,873.14 = 53,100.53 : x
  2. Step 2: Convert to fraction form
    93,386.77/128,873.14 = 53,100.53/x
  3. Step 3: Cross multiply
    93,386.77x = 128,873.14 × 53,100.53
  4. Step 4: Simplify right side
    93,386.77x = 6,843,231,742.92
  5. Step 5: Solve for x
    x = 6,843,231,742.92/93,386.77
  6. Step 6: Final answer
    x = 73,278.39

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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.