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Finding the Fourth Proportional to 61,056,042.60, 85,705,207.80 and 61,056,042.60

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Solution

The fourth proportional to 61,056,042.60, 85,705,207.80 and 61,056,042.60 is: 85,705,207.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,056,042.60 : 85,705,207.80 = 61,056,042.60 : x
  2. Step 2: Convert to fraction form
    61,056,042.60/85,705,207.80 = 61,056,042.60/x
  3. Step 3: Cross multiply
    61,056,042.60x = 85,705,207.80 × 61,056,042.60
  4. Step 4: Simplify right side
    61,056,042.60x = 5,232,820,818,478,652
  5. Step 5: Solve for x
    x = 5,232,820,818,478,652/61,056,042.60
  6. Step 6: Final answer
    x = 85,705,207.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.