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Finding the Fourth Proportional to 101,368.32, 139,875.84 and 58,936.32

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Solution

The fourth proportional to 101,368.32, 139,875.84 and 58,936.32 is: 81,324.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,368.32 : 139,875.84 = 58,936.32 : x
  2. Step 2: Convert to fraction form
    101,368.32/139,875.84 = 58,936.32/x
  3. Step 3: Cross multiply
    101,368.32x = 139,875.84 × 58,936.32
  4. Step 4: Simplify right side
    101,368.32x = 8,243,767,266.51
  5. Step 5: Solve for x
    x = 8,243,767,266.51/101,368.32
  6. Step 6: Final answer
    x = 81,324.89

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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.