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Finding the Fourth Proportional to 93,362.19, 128,798.15 and 57,539.13

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Solution

The fourth proportional to 93,362.19, 128,798.15 and 57,539.13 is: 79,378.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,362.19 : 128,798.15 = 57,539.13 : x
  2. Step 2: Convert to fraction form
    93,362.19/128,798.15 = 57,539.13/x
  3. Step 3: Cross multiply
    93,362.19x = 128,798.15 × 57,539.13
  4. Step 4: Simplify right side
    93,362.19x = 7,410,933,208.91
  5. Step 5: Solve for x
    x = 7,410,933,208.91/93,362.19
  6. Step 6: Final answer
    x = 79,378.31

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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.