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Finding the Fourth Proportional to 93,325.40, 128,800.14 and 58,920.11

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Solution

The fourth proportional to 93,325.40, 128,800.14 and 58,920.11 is: 81,316.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,325.40 : 128,800.14 = 58,920.11 : x
  2. Step 2: Convert to fraction form
    93,325.40/128,800.14 = 58,920.11/x
  3. Step 3: Cross multiply
    93,325.40x = 128,800.14 × 58,920.11
  4. Step 4: Simplify right side
    93,325.40x = 7,588,917,772.81
  5. Step 5: Solve for x
    x = 7,588,917,772.81/93,325.40
  6. Step 6: Final answer
    x = 81,316.75

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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.