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Finding the Fourth Proportional to 292,361.10, 438,412.05 and 134,637.90

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Solution

The fourth proportional to 292,361.10, 438,412.05 and 134,637.90 is: 201,897.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,361.10 : 438,412.05 = 134,637.90 : x
  2. Step 2: Convert to fraction form
    292,361.10/438,412.05 = 134,637.90/x
  3. Step 3: Cross multiply
    292,361.10x = 438,412.05 × 134,637.90
  4. Step 4: Simplify right side
    292,361.10x = 59,026,877,746.70
  5. Step 5: Solve for x
    x = 59,026,877,746.70/292,361.10
  6. Step 6: Final answer
    x = 201,897.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.