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Finding the Fourth Proportional to 93,394.61, 128,879.30 and 53,118.17

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Solution

The fourth proportional to 93,394.61, 128,879.30 and 53,118.17 is: 73,300.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,394.61 : 128,879.30 = 53,118.17 : x
  2. Step 2: Convert to fraction form
    93,394.61/128,879.30 = 53,118.17/x
  3. Step 3: Cross multiply
    93,394.61x = 128,879.30 × 53,118.17
  4. Step 4: Simplify right side
    93,394.61x = 6,845,832,055.28
  5. Step 5: Solve for x
    x = 6,845,832,055.28/93,394.61
  6. Step 6: Final answer
    x = 73,300.08

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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.