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Finding the Fourth Proportional to 64,742,709.60, 97,114,064.40 and 44,335,375.20

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Solution

The fourth proportional to 64,742,709.60, 97,114,064.40 and 44,335,375.20 is: 66,503,062.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,742,709.60 : 97,114,064.40 = 44,335,375.20 : x
  2. Step 2: Convert to fraction form
    64,742,709.60/97,114,064.40 = 44,335,375.20/x
  3. Step 3: Cross multiply
    64,742,709.60x = 97,114,064.40 × 44,335,375.20
  4. Step 4: Simplify right side
    64,742,709.60x = 4,305,588,482,370,963.50
  5. Step 5: Solve for x
    x = 4,305,588,482,370,963.50/64,742,709.60
  6. Step 6: Final answer
    x = 66,503,062.80

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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.