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Finding the Fourth Proportional to 93,205.98, 128,583.32 and 62,980.26

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Solution

The fourth proportional to 93,205.98, 128,583.32 and 62,980.26 is: 86,885.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,205.98 : 128,583.32 = 62,980.26 : x
  2. Step 2: Convert to fraction form
    93,205.98/128,583.32 = 62,980.26/x
  3. Step 3: Cross multiply
    93,205.98x = 128,583.32 × 62,980.26
  4. Step 4: Simplify right side
    93,205.98x = 8,098,210,610.36
  5. Step 5: Solve for x
    x = 8,098,210,610.36/93,205.98
  6. Step 6: Final answer
    x = 86,885.10

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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.