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Finding the Fourth Proportional to 74,860,140.40, 112,290,210.60 and 74,860,140.40

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Solution

The fourth proportional to 74,860,140.40, 112,290,210.60 and 74,860,140.40 is: 112,290,210.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,860,140.40 : 112,290,210.60 = 74,860,140.40 : x
  2. Step 2: Convert to fraction form
    74,860,140.40/112,290,210.60 = 74,860,140.40/x
  3. Step 3: Cross multiply
    74,860,140.40x = 112,290,210.60 × 74,860,140.40
  4. Step 4: Simplify right side
    74,860,140.40x = 8,406,060,931,061,568
  5. Step 5: Solve for x
    x = 8,406,060,931,061,568/74,860,140.40
  6. Step 6: Final answer
    x = 112,290,210.60

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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.