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Finding the Fourth Proportional to 46,581,800.40, 69,872,700.60 and 12,506,590.80

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Solution

The fourth proportional to 46,581,800.40, 69,872,700.60 and 12,506,590.80 is: 18,759,886.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,581,800.40 : 69,872,700.60 = 12,506,590.80 : x
  2. Step 2: Convert to fraction form
    46,581,800.40/69,872,700.60 = 12,506,590.80/x
  3. Step 3: Cross multiply
    46,581,800.40x = 69,872,700.60 × 12,506,590.80
  4. Step 4: Simplify right side
    46,581,800.40x = 873,869,274,495,114.50
  5. Step 5: Solve for x
    x = 873,869,274,495,114.50/46,581,800.40
  6. Step 6: Final answer
    x = 18,759,886.20

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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.