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Finding the Fourth Proportional to 93,285.14, 128,631.86 and 63,017.94

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Solution

The fourth proportional to 93,285.14, 128,631.86 and 63,017.94 is: 86,896.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,285.14 : 128,631.86 = 63,017.94 : x
  2. Step 2: Convert to fraction form
    93,285.14/128,631.86 = 63,017.94/x
  3. Step 3: Cross multiply
    93,285.14x = 128,631.86 × 63,017.94
  4. Step 4: Simplify right side
    93,285.14x = 8,106,113,877.32
  5. Step 5: Solve for x
    x = 8,106,113,877.32/93,285.14
  6. Step 6: Final answer
    x = 86,896.09

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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.