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Finding the Fourth Proportional to 74,507, 102,813.42 and 43,875.22

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Solution

The fourth proportional to 74,507, 102,813.42 and 43,875.22 is: 60,544.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,507 : 102,813.42 = 43,875.22 : x
  2. Step 2: Convert to fraction form
    74,507/102,813.42 = 43,875.22/x
  3. Step 3: Cross multiply
    74,507x = 102,813.42 × 43,875.22
  4. Step 4: Simplify right side
    74,507x = 4,510,961,421.45
  5. Step 5: Solve for x
    x = 4,510,961,421.45/74,507
  6. Step 6: Final answer
    x = 60,544.13

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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.