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Finding the Fourth Proportional to 93,272.51, 128,614.43 and 63,005.29

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Solution

The fourth proportional to 93,272.51, 128,614.43 and 63,005.29 is: 86,878.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,272.51 : 128,614.43 = 63,005.29 : x
  2. Step 2: Convert to fraction form
    93,272.51/128,614.43 = 63,005.29/x
  3. Step 3: Cross multiply
    93,272.51x = 128,614.43 × 63,005.29
  4. Step 4: Simplify right side
    93,272.51x = 8,103,390,019.77
  5. Step 5: Solve for x
    x = 8,103,390,019.77/93,272.51
  6. Step 6: Final answer
    x = 86,878.65

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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.