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Finding the Fourth Proportional to 66,918,045.60, 100,153,119.60 and 46,762,653.60

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Solution

The fourth proportional to 66,918,045.60, 100,153,119.60 and 46,762,653.60 is: 69,987,483.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,918,045.60 : 100,153,119.60 = 46,762,653.60 : x
  2. Step 2: Convert to fraction form
    66,918,045.60/100,153,119.60 = 46,762,653.60/x
  3. Step 3: Cross multiply
    66,918,045.60x = 100,153,119.60 × 46,762,653.60
  4. Step 4: Simplify right side
    66,918,045.60x = 4,683,425,638,814,170
  5. Step 5: Solve for x
    x = 4,683,425,638,814,170/66,918,045.60
  6. Step 6: Final answer
    x = 69,987,483.90

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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.