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Finding the Fourth Proportional to 93,682.51, 129,278.59 and 53,409.24

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Solution

The fourth proportional to 93,682.51, 129,278.59 and 53,409.24 is: 73,702.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,682.51 : 129,278.59 = 53,409.24 : x
  2. Step 2: Convert to fraction form
    93,682.51/129,278.59 = 53,409.24/x
  3. Step 3: Cross multiply
    93,682.51x = 129,278.59 × 53,409.24
  4. Step 4: Simplify right side
    93,682.51x = 6,904,671,106.65
  5. Step 5: Solve for x
    x = 6,904,671,106.65/93,682.51
  6. Step 6: Final answer
    x = 73,702.89

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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.